Because the number of private cars has expanded, drunk driving become more and frequent. The detection a driver’s alcohol concentration focus attention. Therefore, infrared was studied. principle blood glucose noninvasive investigated, it compared with spectrum detection. Finally, using transmission technology an emitter receiver, identification circuit designed by NBohr’s Law Correcting Beer-L...

The study aims at assessing the quality of market garden soil Kimuenza and constraints faced with its productivity. analysis was carried out on one hand, by Hach UV-visible spectroscopy based beer-Lambert law, for physicochemical parameters, X-ray fluorescence saturation elements other ICP- MS metallic trace elements. detection limit reproducibility these methods have been confirmed. obtained i...

The common chemical ultraviolet (UV) filters such as octyl salicylate that are used in sunscreen cream may cause irritation and other unknown medical conditions. One possible route to avoid the direct contact of UV with human skin is enclose those microcapsules. In this study, microcapsules a size calibrated at 78 μm via microfluidics but different shell thicknesses (0.4 2.5 μm) for first time,...

The excitation temperature is crucial for understanding the dynamic processes of a vacuum arc. traditional methods based on optical emission spectroscopy can only provide 1D or 2D distribution. Due to absorption effect, it difficult obtain accurate information about radiation emitted by This result in measurement errors even lead incorrect conclusions. To address these issues, we developed 3D t...

a r t i c l e i n f o The key point in multivariate calibration is to build an accurate regression relationship between the predictors and responses. In this paper, we first use extreme learning machine (ELM) to build spectroscopy regression model. Then, we propose a combinational ELM (CELM) method in which the decision function is represented as a sum of a linear hidden-node output function (a...